Re: [R] help with subset

From: <partofy_at_inoutbox.com>
Date: Fri, 02 May 2008 21:03:13 -0700

Thank you Christos and Jim:

That is precisely what I was after.

On Sat, 3 May 2008 00:01:58 -0400, "Christos Hatzis" <christos.hatzis_at_nuverabio.com> said:
> Try %in%
>
> subset(dat, treatment %in% vec)
>
> > -----Original Message-----
> > From: r-help-bounces_at_r-project.org

> > [mailto:r-help-bounces_at_r-project.org] On Behalf Of
> > partofy_at_inoutbox.com
> > Sent: Friday, May 02, 2008 11:41 PM
> > To: r-help_at_r-project.org
> > Subject: [R] help with subset
> >
> > Dear list:
> >
> > I have a problem using the subset function:
> >
> > dat<- data.frame(treatment=c("A", "B", "A", "C", "C", "D",
> > "A", "D", "C", "D"), response=rnorm(10))
> >
> > I am interested in treatments "A", "B" and "D"
> > vec<- c("A", "B", "D")
> >
> > But I can only obtain what I want with:
> > subset(dat, treatment=="A" | treatment=="B" | treatment=="D")
> >
> > What's wrong with
> > subset(dat, treatment==vec)
> >
> > It would be much more simple to compute the latter in a
> > rather complex dataframe.
> > Thanks in advance
> > Justin
> > --
> >
> > partofy_at_inoutbox.com
> >
> > --
> >
> > ______________________________________________
> > R-help_at_r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide
> > http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
> >
> >
>
>

-- 
  
  partofy_at_inoutbox.com

-- 

                          wherever you are

______________________________________________
R-help_at_r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Received on Sat 03 May 2008 - 04:05:30 GMT

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.2.0, at Sat 03 May 2008 - 05:30:34 GMT.

Mailing list information is available at https://stat.ethz.ch/mailman/listinfo/r-help. Please read the posting guide before posting to the list.

list of date sections of archive